Multiply 2.3 x 105 by 3.65 x 10-2 and express the answer in correct scientific notation and to the appropriate number of significant figures
2006-08-24 12:16:56 · 6 answers · asked by maconheira 4 in Science & Mathematics ➔ Physics
i think the answer is 8.395 x 103
2006-08-24 12:34:21 · answer #1 · answered by Rob 2 · 0⤊ 0⤋
whats up Caitlin... ok, seems such as you're asking approximately order of operations. if so, here this is... You do exponents first. then you certainly do multiplication and branch on an identical precedence, from left to precise. provide an occasion in case you may. only type out the words, no concerns approximately making the numbers look precise here.
2016-12-14 11:19:56 · answer #2 · answered by ? 3 · 0⤊ 0⤋
Multiplying 2.3 x 105 = 241.5
then 241.5 x 3.65 = 881.475
then 881.475 x 10 = 8814.75
then subtract 2,
8814.75 - 2 = 8812.75
Now looking as S.F
2.3 is the lowest # of digits, meaning that your answer must be two digits. Writing this in exponential form would be...
8.8 x 10^3
one way that you can test this answer is by punching it into your calculator and seeing 8800 , which is the rounded form of 8812.75
p.s /// please let me know if this helped you out.
2006-08-24 12:31:14 · answer #3 · answered by Danny 1 · 0⤊ 1⤋
Is 105 really 10^5 ?
Multiply the bases, add the exponents.
2006-08-24 12:19:48 · answer #4 · answered by davidosterberg1 6 · 0⤊ 1⤋
2.3 x 10^5
3.65 x 10^-2
8.395 x 10^3
# significant figures = 2
Ans: 8.4 x 10^3
2006-08-24 13:04:10 · answer #5 · answered by STEVEN F 7 · 0⤊ 0⤋
what???
2006-08-28 08:30:12 · answer #6 · answered by Anonymous · 0⤊ 1⤋